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13. Annex A: Summary of TIFF Fields for Internet Fax

   This annex includes tables which list by mode the TIFF fields used in
   the proposed fax file format.  The fields are organized into 3
   categories:

      1)  TIFF Baseline Fields
      2)  TIFF Extension Fields
      3)  New Fields.

   The tables include the allowed values for each fax mode. Entries
   other than explicit numbers are described by:

      n        - single number
      n, m     - 2 numbers
      a, b, c  - 3 numbers
      r        - rational number
      <n>      - array of numbers
      <b>      - byte sequence
      {ASCII}  - string
      IFD      - IFD byte offset
      <IFD>    - array of IFD byte offsets

   A blank entry in the table indicates that the field is not used by
   that particular fax mode.

13.1. Table A.1 TIFF Baseline Fields

            +---------------------------------------------------------+
            |                    Fax Mode/Profile                     |
            +---------------------------------------------------------|
            | Minimal | Extended |  JBIG  |  Lossy  |Lossless| Mixed  |
 +----------|   B&W   |    B&W   |  B&W   |  Color  | Color  | Raster |
 |   TIFF   |         |          |        |         |        | Content|
 |  Field   |    S    |     F    |   J    |    C    |   L    |   M    |
 +----------+---------+----------+--------+---------+--------+--------+
 | BitsPer  | 1       | 1        | 1      | 8, 12   | 1, 2-8 | 1, 2-8 |
 | Sample   |         |          |        |         | 9-16   | 9-16   |
 +----------+---------+----------+--------+---------+--------+--------+
 | ColorMap |         |          |        |         | <n>    | <n>    |
 +----------+---------+----------+--------+---------+--------+--------+
 | Compres- | 3       | 3, 4     | 9      | 7       | 10     | 3, 4, 7|
 | sion     |         |          |        |         |        | 9,10   |
 +----------+---------+----------+--------+---------+--------+--------+
 | DateTime |         | {ASCII}  | {ASCII}| {ASCII} | {ASCII}| {ASCII}|
 +----------+---------+----------+--------+---------+--------+--------+
 | FillOrder| 2       | 1, 2     | 1, 2   | 1, 2    | 1, 2   | 1,2    |
 +----------+---------+----------+--------+---------+--------+--------+

 +----------+---------+----------+--------+---------+--------+--------+
 | ImageDes-|         | {ASCII}  | {ASCII}| {ASCII} | {ASCII}| {ASCII}|
 | cription |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Image-   | n       | n        | n      | n       | n      | n      |
 | Length   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Image-   | 1728    | 1728, 2048, 2432  |   864, 1024, 1216, 1728,  |
 | Width    |         | 2592, 3072, 3456  |  2048, 2432, 2592, 3072,  |
 |          |         | 3648, 4096, 4864  |  3456, 3648, 4096, 4864   |
 +----------+---------+----------+--------+---------+--------+--------+
 | NewSub-  | 2       | 2        | 2      | 2       | 2      | 16, 18 |
 | FileType |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Orien-   | 1       | 1-8      | 1-8    | 1-8     | 1-8    | 1-8    |
 | tation   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Photo-   | 0       | 0, 1     | 0, 1   | 10      | 2, 5,  | 0, 1,  |
 | metric-  |         |          |        |         | 10     | 2, 5,  |
 | Interp-  |         |          |        |         |        | 10     |
 | retation |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Resolu-  | 2       | 2, 3     | 2, 3   | 2, 3    | 2, 3   | 2, 3   |
 | tionUnit |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | RowsPer- | n       | n        | n      | n       | n      | n      |
 | Strip    |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Samples- | 1       | 1        | 1      | 1, 3    | 1, 3, 4| 1, 3, 4|
 | PerPixel |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Software |         | {ASCII}  | {ASCII}| {ASCII} | {ASCII}| {ASCII}|
 +----------+---------+----------+--------+---------+--------+--------+
 | Strip-   | n       | <n>      | <n>    | <n>     | <n>    | <n>    |
 | Byte-    |         |          |        |         |        |        |
 | Counts   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Strip-   | n       | <n>      | <n>    | <n>     | <n>    | <n>    |
 | Offsets  |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | XResolu- | 204     | 200, 204, 300     |    100, 200, 300, 400     |
 | tion     | 200     | 400, 408          |                           |
 +----------+---------+----------+--------+---------+--------+--------+
 | YResolu- | 98, 196 | 98, 196, 100, 200 |    100, 200, 300, 400     |
 | tion     | 100,200 | 300, 391, 400     |                           |
 +----------+---------+----------+--------+---------+--------+--------+

13.2. Table A.2 TIFF Extension Fields

            +---------------------------------------------------------+
            |                    Fax Mode/Profile                     |
            +---------------------------------------------------------|
            | Minimal | Extended |  JBIG  |  Lossy  |Lossless| Mixed  |
 +----------|   B&W   |    B&W   |  B&W   |  Color  | Color  | Raster |
 |   TIFF   |         |          |        |         |        | Content|
 |  Field   |    S    |     F    |   J    |    C    |   L    |   M    |
 +----------+---------+----------+--------+---------+--------+--------+
 | Chroma-  |         |          |        | 1       |        | 1      |
 | Position-|         |          |        |         |        |        |
 | ing      |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Chroma-  |         |          |        | <1, 1>  |        | <1, 1> |
 | SubSampl-|         |          |        | <2, 2>  |        | <2, 2> |
 | ing      |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Document-|         | {ASCII}  | {ASCII}| {ASCII} | {ASCII}| {ASCII}|
 | Name     |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Indexed  |         |          |        |         | 0,1    | 0,1    |
 +----------+---------+----------+--------+---------+--------+--------+
 | Page-    | n, m    | n, m     | n, m   | n, m    | n, m   | n, m   |
 | Number   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | SubIFDs  |         |          |        |         |        | <IFD>  |
 +----------+---------+----------+--------+---------+--------+--------+
 | T4Options| 0, 4    | 0, 1,    |        |         |        | 0, 1,  |
 |          |         | 4, 5     |        |         |        | 4, 5   |
 +----------+---------+----------+--------+---------+--------+--------+
 | T6Options|         | 0        |        |         |        | 0      |
 +----------+---------+----------+--------+---------+--------+--------+
 | XPosition|         |          |        |         |        | r      |
 +----------+---------+----------+--------+---------+--------+--------+
 | YPosition|         |          |        |         |        | r      |
 +----------+---------+----------+--------+---------+--------+--------+

13.3. Table A.3 New Fields

            +---------------------------------------------------------+
            |                    Fax Mode/Profile                     |
            +---------------------------------------------------------|
            | Minimal | Extended |  JBIG  |  Lossy  |Lossless| Mixed  |
 +----------|   B&W   |    B&W   |  B&W   |  Color  | Color  | Raster |
 |   TIFF   |         |          |        |         |        | Content|
 |  Field   |    S    |     F    |   J    |    C    |   L    |   M    |
 +----------+---------+----------+--------+---------+--------+--------+
 | BadFax-  |         | n        |        |         |        |        |
 | Lines    |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | CleanFax-|         | 0, 1, 2  |        |         |        |        |
 | Data     |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Coding-  |         |          | n      | n       | n      | n      |
 | Method   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Consecu- |         | n        |        |         |        |        |
 | tiveBad- |         |          |        |         |        |        |
 | FaxLines |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Decode   |         |          |        | <r>     | <r>    | <r>    |
 +----------+---------+----------+--------+---------+--------+--------+
 | Default- |         |          |        |         |        | <n>    |
 |ImageColor|         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Fax-     |         |          | n      | n       | n      | n      |
 | Profile  |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Global-  |         | IFD      | IFD    | IFD     | IFD    | IFD    |
 | Parame-  |         |          |        |         |        |        |
 | tersIFD  |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Image-   |         |          |        |         |        | n, m   |
 | Layer    |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Mode-    |         |          |        |         |        | n      |
 | Number   |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------|
 | Profile- |         |          | n      | n       | n      | n      |
 | Type     |         |          |        |         |        |        |
 +--------------------------------------------------------------------+

 +----------+---------+----------+--------+---------+--------+--------+
 | Strip-   |         |          |        |         |        | <n>    |
 | RowCounts|         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+
 | Version- |         |          |        | <b>     |<b>     |        |
 | Year     |         |          |        |         |        |        |
 +----------+---------+----------+--------+---------+--------+--------+

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